Here's a peek at what happens during a commercial break of a live 'America's Got Talent' show.
NBC

Tuesday marked the first part of the two-night America's Got Talent season finale, and there's no question that all 10 remaining acts have impressive talent.

But who has what it takes to become this season's champion? We've ranked the five best acts.

1. Darci Lynne Farmer

As if one puppet wasn't already cool enough, our favorite singing ventriloquist had two puppets accompany her onto the AGT stage Tuesday. Her picks? Petunia, the bold rabbit from Farmer's first audition, and Oscar, the nervous mouse who fell for Mel B. Farmer began with an argument between the two over whose performance landed them in the finals.

"Guys, you shouldn't fight. You need to work together," Farmer said. Using her voice, the puppet duo launched into With a Little Help from My Friends by The Beatles.

2. Angelica Hale

Just like she sang early on in the competition, this girl is on fire. The 10-year-old wowed with a beautiful cover of Symphony by Clean Bandit, singing with perfect pitch and hitting an insanely high note near the end of the song. And despite becoming more confident with each performance, Hale has remained humble throughout the process.

"That's the way to close a show, let alone open it," Howie Mandel said.

3. Mandy Harvey

Mandy Harveyhas made the impossible possible this season. Despite losing her hearing at age 18, Harvey, now 29, learned how to sing again and followed her love of music all the way to the AGT stage.

For the past several weeks, she's sung her heart out with beautiful original songs about courage and perseverance, inspiring us all to Try. And in her intro video, she shared how she found the strength to overcome a profound loss.

"I didn’t understand that my life would be beautiful again," Harvey said.

Thanks to her refusal to give up, Harvey has brought hope and inspiration to the AGT stage and to people across the country. She amazed the audience and judges with another original, This Time.

4. Preacher Lawson

This comedian brought the laughs once again for his final AGT performance.

While Preacher Lawson usually combines multiple anecdotes in his series of jokes, he just went with one this time, adding in a lot of hilarious movement and dancing around instead. Toward the end, he repeatedly — thirteen times, to be exact — shrieked while flailing one arm and one leg.

"I like doing this joke, there's always a few people in the crowd like dying laughing, then right next to them is like, 'How long he gonna do this for?'" Lawson said.

5. Chase Goehring

The guitar-playing singer-songwriter brought another original, this time Mirror, a song about how society pressures people to look a certain way.

"Mirror, mirror on the wall, why you gotta hurt 'em all? You know that they heard it all," Goehring sang.

The song also featured his fastest rap verses yet.

"I do think a lot of people really connect with your music," Heidi Klum said, adding that she thinks she might hear him on the radio one day.

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The premiere of NBC's 'America's Got Talent' Season 12 was on Aug. 15, 2017 in Hollywood. Before it kicked off, the stars of the show lit up the red carpet with excitement and humor. Here's contestant Bello Nock in full costume, including his sky-high hair. Frazer Harrison, Getty Images